diff --git a/tests/test_generics.rs b/tests/test_generics.rs
index ac5d6f3..d7790e2 100644
--- a/tests/test_generics.rs
+++ b/tests/test_generics.rs
@@ -158,4 +158,4 @@ pub struct StructFromGeneric<E> {
 //
 #[derive(Error, Debug)]
 #[error(transparent)]
-pub struct StructTransparentGeneric<E>(E);
+pub struct StructTransparentGeneric<E>(pub E);